Recovering germanium from coal ash by chlorination with ammonium chloride
来源期刊：Rare Metals2002年第4期
论文作者：ZHU Guocai, SHI Wenzhong, and TIAN Jun Institute of Nuclear Energy Technology, Tsinghua University, Beijing , China Chemistry Department, Zhu Madian Normal College, Zhu Madian , China Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang , China
文章页码：278 - 281
摘 要：<正>A new process of enriching germanium from coal ash was developed. The process involves in mixing the coalash and ammonium chloride and then roasting the mixture to produce germanium chloride that is then absorbed by dilutehydrochloric acid and hydrolyzed to germanium oxide. The germanium recovery reached to 80.2% at the optimum condition: mass ratio of NH4Cl/coal ash is 0.15, roasting temperature 400℃ and roasting time 90 min.
摘要：<正>A new process of enriching germanium from coal ash was developed. The process involves in mixing the coalash and ammonium chloride and then roasting the mixture to produce germanium chloride that is then absorbed by dilutehydrochloric acid and hydrolyzed to germanium oxide. The germanium recovery reached to 80.2% at the optimum condition: mass ratio of NH4Cl/coal ash is 0.15, roasting temperature 400℃ and roasting time 90 min.
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